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Mobile data offloading through WiFi is an essential requirement to reduce cellular network traffic. While extensive attempts have been made at mobile data offloading, previous studies have rarely addressed practical issues, such as dealing with diverse user contexts. In this paper, we propose a personalized data offloading scheme to provide maximum throughput within the cellular budget in daily life...
Mobile Ad Hoc NETworks (MANETs) have become eminent resources for providing communication to military and other defence establishments operating in the conventional battlefield scenario in enemy territory or Counter Insurgency/Counter Terrorism operations beyond the reach of a permanent network infrastructure. However, MANET's inherent topology lack in defensive procedures and are thus, vulnerable...
Wireless communications are currently undergoing very rapid development, and as a result, the demand for wireless spectrum has been growing dramatically. In this regard, future wireless solutions have to meet multiple needs in terms of spectrum efficiency (SE). Both 5G, the next generation of mobile networks, and Cognitive Radio (CR) came as promising new technologies dealing with those requirements...
Network mobility standard released by the Internet Engineering Task Force (IETF), which allow the deployment of TCP/IP networks onboard a vehicle and maintain continuous network connectivity to the Internet through a mobile router. It enables the passengers travelling on public transports can avail the efficient mobile computing facility on move. It is challenging task to ensure network performance...
Trust is a soft security solution for Ad-hoc Wireless Networks such as Mobile Adhoc Networks (MANETs), Wireless Sensor networks (WSNs). Due to openness of the networks a malicious node can easily join and disrupt the network. Trust models are used to discriminate between legitimate and malicious nodes in the network. The characteristics of MANETs and WSNs are different so, there are some significant...
A mobile ad hoc network MANET is a collection of mobile nodes in which the nodes can communicate without the need of any access point or infrastructure. The wireless nodes can dynamically form a network to exchange information among them without making use of any existing network infrastructure. The mobile hosts are free to move dynamically and act as routers. Security is a highly challenging issue...
In wireless communication networks link adaptation techniques are widely used to improve the quality by adapting various parameters of channel. Adaptive modulation and coding (AMC) is one such technique which adopts various modulation techniques based on certain channel conditions like received signal power or signal strength or distance. This paper compares simulation results of adaptive modulation...
Heterogeneous wireless systems such as a combination of mobile broadband wireless access (MBWA) and wireless local area network (WLAN) are candidates to attain the large capacity in next generation mobile communication systems. For capacity expansion, small cell networks using millimeter wave are necessary. However, small cell networks have only several meters coverage, thus their resources are used...
A Mobile ad hoc network consists of wireless mobile nodes those who have ability to communicate mutually while there is no role of infrastructure network or any centralized control. In order to forward packets from one node to another, a mobile node works as host as well as router. Routing protocols play a relevant role in functioning of mobile ad-hoc networks. Many routing protocols have been proposed...
In this work, by using random access and priority considerations we develop a mobile healthcare network. We assign 4 medical information priorities to the nodes of wireless body area network. Accurate and quick prioritization of personal healthcare information is crucial for making efficient and real-time decisions. We transfer the medical data to the access point in wireless body area network by...
As the mobile data demand keeps growing, an existing heterogeneous network (HetNet) composed of macrocells and small cells may still face the problem of not being able to provide sufficient capacity for unexpected but reoccurring hot spots. In this paper, we propose a mobile small-cell deployment strategy that avoids replanning the overall network while fulfilling the hot spot demand by optimizing...
Mobile applications such as VoIP, (live) gaming, or video streaming have diverse QoS requirements ranging from low delay to high throughput. The optimization of the network quality experienced by end-users requires detailed knowledge of the expected network performance. Also, the achieved service quality is affected by a number of factors, including network operator and available technologies. However,...
Reputation systems are an emerging area of research in ad-hoc networks. They have been introduced as a security solution for nodes' misbehaving problem. A reputation system should cope with any kind of misbehavior. It enables honest nodes to make fair decisions about their neighbors. This may encourage nodes to behave well and cooperate in order to avoid being penalized or isolated. In this paper,...
In this paper, it is analyzed the performance of routing protocols based on the evaluation of different parameters used in MANETs (Mobile Ad-Hoc Networks). The results show that DSR provides better throughput as compared to AODV in lower mobility Scenario. At the same time, it also gives less number of drop packets and low End-to-End delay as compared to AODV in lower mobility. Therefore it concludes...
A Mobile Ad-hoc Network (MANET) has special characteristics such as dynamic topology, the absence of an administrative point and no fixed infrastructure. These features make it vulnerable to many attacks, such as the Denial of Service (DoS) attack. This type of attack deprives users of access to their legitimate services leading to degradation of the network. This paper posits the Monitor, Detect,...
A new approach to the selection of objective control functions of terrestrial mobile ad-hoc networks using unmanned aerial vehicles, based on the current control functions formation, depending on the traffic type, current situation in the network and available network resources. Decision management task reduced to hierarchical evaluation of alternatives.
In this paper, two algorithms are proposed to determine the optimal locations of mobile relay stations (MRSs) in relay-aided cellular networks, aiming at maximizing energy efficiency (EE) while guaranteeing the spectral efficiency (SE) requirement and the signal-to-interference-plus-noise ratio (SINR) constraints of MRSs. First, an interference graph construction method is proposed to calculate the...
In order to support the rapid increase of mobile traffic, network densification in addition to utilization of high frequency spectrum such as millimeter-wave frequency bands are envisioned as key enablers. In such situations, the amount of resources available to users increases. This paper investigates the resource selection scheme based on the proportional fair (PF) criteria. It is proved that two...
LTE and WiMAX are the most important radio access technologies in the fourth generation mobile networks providing broadband access. The technologies bring strong QoS support, especially for multimedia services such as real-time video streaming, requiring bounded packet loss rate and delay. To reach these goals, effective packet scheduling schemes are needed to allocate radio resources. The function...
Cloud computing Concept has been recognized as the next generation computing infrastructure. In addition, the explosive expansion of mobile devices usage around all over the world leads to more requirements in terms of resources, environment, and security. Therefore, mobile cloud computing (MCC) paradigm emerges, and it is considered as the future technology for mobile services and applications. Furthermore,...
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